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  • BS 764:1990

BS 764:1990

Specification for automatic change-over contactors for emergency lighting systems

BSI Group , 05/31/1990

Publisher: BS

File Format: PDF

$80.00$160.02


Standard By:BSI Group , 05/31/1990
Published:05/31/1990
Pages:12
ISBN(s):0580179958
File Size:1 file , 480 KB
Language:English
Note:This product is unavailable in Ukraine, Russia, Belarus
Design and performance requirements for d.c. and single-phase a.c. double-pole change-over contactors for low-voltages up to 250 volts and a range of standard current ratings, which are used to provide the automatic transfer of current supplied to safety lights from the normal source to an alternative source when the normal source fails; reconnection is automatic when the normal supply conditions are restored.Cross References:BS 2752BS 2757BS 5750

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